There are several reasons why it is a good idea to apply a masonry primer before paint.
Primer for bad siding.
However it is not necessary to apply the primer full strength.
A simple solution is to follow the advice of your paint manufacturer.
In fact thinning it down actually helps the primer penetrate deeply into the eroded paint finish on your siding.
Then apply some primer over the affected area.
These paints form a tough but flexible film that allows moisture within the wood to escape while protecting the cedar from atmospheric moisture that might lead to extractive bleed.
Alkyd oil primers are recommended but one may choose a high quality latex primer as long as it contains stain blockers.
Keep in mind that paint sticks to the layer directly beneath it whether that layer is bare siding or primer.
Properly primed a 100 percent acrylic latex paint will provide decades of protection for cedar siding shingles.
Most of the time you can skip right over the primer step on a vinyl paint job.
Cedar siding painting will only be successful if you have a clean slate.
Remove pollutants and remove failing paint.
If the masonite is already compromised scrape off the area in consideration.
On discovering any of these problems fix it before it escalates out of hand.
Do not allow peeling paint to remain on the cedar siding before painting.
You prime t1 111 with an exterior acrylic primer and finish with acrylic house paint in a flat or satin finish.
According to benjamin moore only areas of pitted or porous vinyl siding must be primed of course.
You also don t use oil based products on t1 111 as it will cause delaminating when it.
Here are a few tips on how to repair masonite siding.
For example a primer may be recommended if the siding is pitted or shows other signs of deterioration or severe weathering.
Virtually every paint manufacturer makes a high quality oil based metal priming paint.
Do prime the exposed wood whether new or previously painted with oil primer.
Primer shouldn t be necessary before painting vinyl siding unless the surface is pitted or the original color has faded so much that the siding panels have become porous.
Some masonry surfaces can have a high ph level which will cause adhesion problems if you apply paint directly to the surface.
We like to use sherwin williams or porter oil primers.
Prime the cedar before you paint it.
In that case be sure to.